Alex sold his goods after announcing two successive discounts

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Alex sold his goods after announcing two successive discounts of 30% each. The effective discount altogether is

1. 52%
2. 49%
3. 50%
4. 51%

Correct Option: D

As we know the formula for two successive discount.

Equivalent single discount =		D₁ + D₂ −	D₁ × D₂		%
			100

Single equivalent discount =		30 + 30 −	30 × 30		% = 51%
			100